Low distortion seat ring assemblies for fluid valves
CA 2573003 C · Owner: Fisher Controls International Llc · Inventors: Barron, Kimball Ralph; Alman, Paul Taylor
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Low distortion seat ring assemblies for use with fluid valves are disclosed. An example seat ring assembly (300) includes a seat ring (306) having an outer circumferential surface and a shoulder (324) extending about at least a portion of the outer circumferential surface. The shoulder (324) includes a first surface configured to form a seal against a valve body (302) and a second surface substantially opposite the first surface. The seat ring assembly also includes a seat ring retainer (308) configured to be attached to the valve body (302) and to apply a force to the second surface to hold the first surface to form the seal against the valve body (302).
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed June 23, 2005 and granted May 13, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 23, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.